1 opposition | Definition of opposition

opposition

noun
op·​po·​si·​tion | \ ˌä-pÉ™-ˈzi-shÉ™n How to pronounce opposition (audio) \

Definition of opposition

1 : a configuration (see configuration sense 1b) in which one celestial (see celestial entry 1 sense 2) body is opposite another (such as the sun) in the sky or in which the elongation (see elongation sense 1) is near or equal to 180 degrees
2 : the relation between two propositions having the same subject and predicate but differing in quantity or quality or both
3 : an act of setting opposite or over against : the condition of being so set He spoke in opposition to the new law.
4 : hostile or contrary action or condition offered strong opposition to the advance of the enemy
5a : something that opposes specifically : a body of persons opposing something Each candidate is focused on raising more money than the opposition.
b often capitalized : a political party opposing and prepared to replace the party in power The opposition is likely to win the upcoming election.